Commit Graph

23 Commits

Author SHA1 Message Date
Jonathan Liu
b6dc13c2d3 sulogin: allow system maintenance login if root password is empty
The current password checking is unable to distinguish between the user
entering an empty password or pressing Control-D. As a result, an empty
password always results in normal startup.

We modify bb_ask to return NULL if Control-D is pressed without entering
a password. The sulogin applet is then modified to only proceed to
normal startup if bb_ask returns NULL. This covers EOF with no password,
interrupt by timeout and ^C.

Signed-off-by: Jonathan Liu <net147@gmail.com>
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2013-05-21 17:01:55 +02:00
Denys Vlasenko
7449e18190 getty,login: tighten up handling of ctty, pgrp, and tty attr restoring on timeout
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2011-10-22 06:27:41 +02:00
Denys Vlasenko
0ef64bdb40 *: make GNU licensing statement forms more regular
This change retains "or later" state! No licensing _changes_ here,
only form is adjusted (article, space between "GPL" and "v2" and so on).

Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2010-08-16 20:14:46 +02:00
Denys Vlasenko
557deb1014 libbb: fix bb_ask() to operate on correct fd
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2010-02-03 12:17:06 +01:00
Denys Vlasenko
c8e18ca12c remove now-unneeded memset
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2010-02-01 13:45:04 +01:00
Denys Vlasenko
e936c6d1c5 make echo -e "foo\nfoo" | passwd USER work
Suggested by Michael Zhu (linuxsir320 AT gmail.com)

function                                             old     new   delta
bb_ask                                               333     340      +7

Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2010-02-01 04:55:30 +01:00
Denys Vlasenko
8131eea3dc *: introduce and use ffulsh_all()
function                                             old     new   delta
buffer_fill_and_print                                179     196     +17
fflush_all                                             -       9      +9
spawn                                                 87      92      +5
rtcwake_main                                         455     453      -2
...
alarm_intr                                            93      84      -9
readcmd                                             1072    1062     -10
bb_ask                                               345     333     -12
more_main                                            845     832     -13
flush_stdout_stderr                                   42      23     -19
xfflush_stdout                                        27       -     -27
flush_stderr                                          30       -     -30
------------------------------------------------------------------------------
(add/remove: 1/2 grow/shrink: 2/50 up/down: 31/-397)         Total: -366 bytes

Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2009-11-02 14:19:51 +01:00
Denys Vlasenko
9b1b62adc4 Patches to enable FreeBSD build
platform.h: fix wrong check for endianness, fix lchown
aliasing to chown on uclibc.

Code seems to not be affected in my testing.

Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2009-07-05 03:34:12 +02:00
Bernhard Reutner-Fischer
82b1429966 - add new applet mkpasswd(1)
function                                             old     new   delta
bb_ask                                                 -     355    +355
mkpasswd_main                                          -     296    +296
.rodata                                           121746  121847    +101
packed_usage                                       24632   24689     +57
static.methods                                         -      21     +21
gmatch                                               229     248     +19
bb_ask_stdin                                           -      11     +11
applet_names                                        1949    1958      +9
applet_main                                         1172    1176      +4
sulogin_main                                         503     505      +2
applet_nameofs                                       586     588      +2
sha256_hash                                          329     327      -2
correct_password                                     208     206      -2
parse_command                                       1442    1439      -3
get_cred_or_die                                      145     141      -4
passwd_main                                         1054    1044     -10
bb_askpass                                           348       -    -348
------------------------------------------------------------------------------
(add/remove: 4/1 grow/shrink: 7/5 up/down: 877/-369)          Total: 508 bytes
2008-12-03 18:48:39 +00:00
Denis Vlasenko
61befda93b ash,hush: add TODO for rare build failure
*: remove some redundant includes
2008-11-25 01:36:03 +00:00
Denis Vlasenko
202ac504e1 *: code shrink by adding a wrapper around very common tcsetattr(0, TCSANOW, xx) op
function                                             old     new   delta
tcsetattr_stdin_TCSANOW                                -      14     +14
set_sane_term                                        116     113      -3
top_main                                            1277    1273      -4
make_new_session                                     421     415      -6
rawmode                                              133     126      -7
reset_term                                            18      10      -8
die                                                   43      35      -8
cookmode                                              62      54      -8
vlock_main                                           425     415     -10
read_line_input                                     3165    3155     -10
bb_askpass                                           357     347     -10
fsck_minix_main                                     3079    3065     -14
getty_main                                          2375    2332     -43
------------------------------------------------------------------------------
(add/remove: 1/0 grow/shrink: 0/12 up/down: 14/-131)         Total: -117 bytes
2008-11-05 13:20:58 +00:00
Denis Vlasenko
a60f84ebf0 *: rename ATTRIBUTE_XXX to just XXX. 2008-07-05 09:18:54 +00:00
Denis Vlasenko
defc1ea340 *: introduce and use FAST_FUNC: regparm on i386, otherwise no-on
text    data     bss     dec     hex filename
 808035     611    6868  815514   c719a busybox_old
 804472     611    6868  811951   c63af busybox_unstripped
2008-06-27 02:52:20 +00:00
Denis Vlasenko
8e2cfec1cd libbb: introduse and use signal_[no_]SA_RESTART_empty_mask and sigaction_set
signal_SA_RESTART_empty_mask                           -      65     +65
signal_no_SA_RESTART_empty_mask                        -      54     +54
dd_main                                             1325    1369     +44
sigaction_set                                          -      19     +19
dname_enc                                            373     377      +4
UNSPEC_print                                          64      66      +2
setsignal                                            296     294      -2
bb_signals_recursive                                  95      92      -3
bb_askpass                                           367     361      -6
inetd_main                                          1810    1797     -13
rx_main                                              912     883     -29
sigdelset                                             32       -     -32
__sigdelset                                           32       -     -32
__GI_sigdelset                                        32       -     -32
sighup_handler                                        84      37     -47
arping_main                                         1844    1797     -47
fsck_main                                           1869    1807     -62
run_list                                            1917    1844     -73
vlock_main                                           492     409     -83
progressmeter                                        883     798     -85
handle_incoming_and_exit                            2737    2651     -86
------------------------------------------------------------------------------
(add/remove: 3/3 grow/shrink: 3/12 up/down: 188/-632)        Total: -444 bytes
2008-03-12 23:19:35 +00:00
Denis Vlasenko
e5387a0574 bb_askpass: handle Ctrl-C, restore termoios on Ctrl-C.
sulogin: remove alarm handling, as it is redundant there.
code shrink. After all differences cancel out:

   text    data     bss     dec     hex filename
 777543    1000    9532  788075   c066b busybox_old
 777543    1000    9532  788075   c066b busybox_unstripped
2007-10-20 19:20:22 +00:00
Denis Vlasenko
4daad9004d introduce bb_putchar(). saves ~1800 on uclibc (less on glibc). 2007-09-27 10:20:47 +00:00
Denis Vlasenko
91e149a373 libbb: random hunt for statics
function                                             old     new   delta
bb_askpass                                           306     321     +15
pw_encrypt                                            38      39      +1
static.passwd                                         64       4     -60
static.cipher                                        128       4    -124
------------------------------------------------------------------------------
(add/remove: 0/0 grow/shrink: 2/2 up/down: 16/-184)          Total: -168 bytes

# size busybox_old busybox_unstripped
   text    data     bss     dec     hex filename
 683705    2704   14240  700649   ab0e9 busybox_old
 683721    2704   14064  700489   ab049 busybox_unstripped
2007-06-18 10:35:06 +00:00
Denis Vlasenko
9a7d38fe24 delete tons of extra #includes 2007-05-31 22:42:12 +00:00
Denis Vlasenko
ab24e18c7a passwd: rework:
* do not make backup copy by copying (just retain old file)
* correctly fall back to /etc/passwd if user is not in shadow
* fix bug with overlong passwd entries
* be permissive on some kinds of failures
* reduce stack usage
* code size: -500 bytes
2006-11-30 16:41:15 +00:00
Denis Vlasenko
6429aabbf1 bb_askpass: shorten static password buffer. 256 is way too large.
simplify code a bit.
2006-09-23 12:22:11 +00:00
Bernhard Reutner-Fischer
20f4000086 - add some ATTRIBUTE_UNUSED.
- use shorter boilerplate while at it.
2006-01-30 17:17:14 +00:00
Rob Landley
e422af6bcb Flush input when prompting for a password (bug 373). 2005-12-12 07:02:15 +00:00
Eric Andersen
6f9a7783ce Do not use getpass(3) 2004-05-01 01:27:30 +00:00